1243068684 has 144 divisors (see below), whose sum is σ = 3465955584. Its totient is φ = 343699200.

The previous prime is 1243068667. The next prime is 1243068689. The reversal of 1243068684 is 4868603421.

It is not an unprimeable number, because it can be changed into a prime (1243068689) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2297454 + ... + 2297994.

It is an arithmetic number, because the mean of its divisors is an integer number (24069136).

Almost surely, 2^1243068684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243068684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732977792).

1243068684 is an abundant number, since it is smaller than the sum of its proper divisors (2222886900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243068684 is a wasteful number, since it uses less digits than its factorization.

1243068684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 1243068684 is about 35257.1791838201. The cubic root of 1243068684 is about 1075.2225777450. Note that the first 3 decimals are identical.

The spelling of 1243068684 in words is "one billion, two hundred forty-three million, sixty-eight thousand, six hundred eighty-four".